I'm wondering if I can open up a local shop and sell bitcoins for cash without paperwork or signing anything. Sure a bitcoin ATM can fulfill that role but as a shop I could do other things such as sell bitcoin merch etc, offer information on bitcoin and cryptos etc, but primarily I'm wondering if I can sell bitcoin for cash without hassling customers with paperwork. I suppose the laws would be the same for an ATM machine? which I haven't heard to be of a legal problem. I'd be considering doing this in Texas, USA, by the way. Any references or shared knowledge would be great, and I'm less interested in speculation. Thanks!
NO! unless your state is ready to provide you with a GST number for such kind of business just don't even think of opening such a shop or you would be considered as a person involved in money laundering. Changing btc for cash would mean zero accountability so authorities would be really be worried about any such venture.